Your body works as a network of systems — digestion, hormones, immunity, detox, energy — all talking to each other every second. When one starts glitching, others often follow. In this section, we’ll look at how your digestion reacts to meals, how your body recovers from stress, and whether your energy systems keep up with your lifestyle. These clues help us see which “engines” are misfiring beneath the surface so we can target the right systems for repair.